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Start Over Author "Pye, Stephen R" Journal the journal of clinical endocrinology & metabolism
9 results on '"Pye, Stephen R"'

1. Associations Between Sex Steroids and the Development of Metabolic Syndrome: A Longitudinal Study in European Men

Author

Antonio, Leen, Wu, Frederick C. W., OʼNeill, Terence W., Pye, Stephen R., Carter, Emma L., Finn, Joseph D., Rutter, Martin K., Laurent, Michaël R., Huhtaniemi, Ilpo T., Han, Thang S., Lean, Michael E. J., Keevil, Brian G., Pendleton, Neil, Rastrelli, Giulia, Forti, Gianni, Bartfai, Gyorgy, Casanueva, Felipe F., Kula, Krzysztof, Punab, Margus, Giwercman, Aleksander, Claessens, Frank, Decallonne, Brigitte, and Vanderschueren, Dirk

Published
2015

2. Comparisons of Immunoassay and Mass Spectrometry Measurements of Serum Estradiol Levels and Their Influence on Clinical Association Studies in Men

Author

Ohlsson, Claes, Nilsson, Maria E., Tivesten, Åsa, Ryberg, Henrik, Mellström, Dan, Karlsson, Magnus K., Ljunggren, Östen, Labrie, Fernand, Orwoll, Eric S., Lee, David M., Pye, Stephen R., OʼNeill, Terence W., Finn, Joseph D., Adams, Judith E., Ward, Kate A., Boonen, Steven, Bartfai, Gyorgy, Casanueva, Felipe F., Forti, Gianni, Giwercman, Aleksander, Han, Thang S., Huhtaniemi, Ilpo T., Kula, Krzysztof, Lean, Michael E. J., Pendleton, Neil, Punab, Margus, Vanderschueren, Dirk, Wu, Frederick C. W., and Vandenput, Liesbeth

Published
2013

3. Active Vitamin D (1,25-Dihydroxyvitamin D) and Bone Health in Middle-Aged and Elderly Men: The European Male Aging Study (EMAS)

Author

Vanderschueren, Dirk, Pye, Stephen R., OʼNeill, Terence W., Lee, David M., Jans, Ivo, Billen, Jaak, Gielen, Evelien, Laurent, Michaël, Claessens, Frank, Adams, Judith E., Ward, Kate A., Bartfai, Gyorgy, Casanueva, Felipe F., Finn, Joseph D., Forti, Gianni, Giwercman, Aleksander, Han, Thang S., Huhtaniemi, Ilpo T., Kula, Krzysztof, Lean, Michael E. J., Pendleton, Neil, Punab, Margus, Wu, Frederick C. W., and Boonen, Steven

Published
2013

5. Effect of Polymorphisms in Selected Genes Involved in Pituitary-Testicular Function on Reproductive Hormones and Phenotype in Aging Men

Author

Huhtaniemi, Ilpo T., Pye, Stephen R., Holliday, Kate L., Thomson, Wendy, OʼNeill, Terence W., Platt, Hazel, Payne, Debbie, John, Sally L., Jiang, Min, Bartfai, György, Boonen, Steven, Casanueva, Felipe F., Finn, Joseph D., Forti, Gianni, Giwercman, Aleksander, Han, Thang S., Kula, Krzysztof, Lean, Michael E. J., Pendleton, Neil, Punab, Margus, Silman, Alan J., Vanderschueren, Dirk, Labrie, Fernand, and Wu, Frederick C. W.

Published
2010

6. Increased Estrogen Rather Than Decreased Androgen Action Is Associated with Longer Androgen Receptor CAG Repeats

Author

Huhtaniemi, Ilpo T., Pye, Stephen R., Limer, Kate L., Thomson, Wendy, OʼNeill, Terence W., Platt, Hazel, Payne, Debbie, John, Sally L., Jiang, Min, Boonen, Steven, Borghs, Herman, Vanderschueren, Dirk, Adams, Judith E., Ward, Kate A., Bartfai, György, Casanueva, Felipe, Finn, Joseph D., Forti, Gianni, Giwercman, Aleksander, Han, Thang S., Kula, Krzysztof, Lean, Michael E. J., Pendleton, Neil, Punab, Margus, Silman, Alan J., and Wu, Frederick C. W.

Published
2009

8. Genetic Determinants of Circulating Estrogen Levels and Evidence of a Causal Effect of Estradiol on Bone Density in Men

Author

Eriksson, Anna L, primary, Perry, John R B, additional, Coviello, Andrea D, additional, Delgado, Graciela E, additional, Ferrucci, Luigi, additional, Hoffman, Andrew R, additional, Huhtaniemi, Ilpo T, additional, Ikram, M Arfan, additional, Karlsson, Magnus K, additional, Kleber, Marcus E, additional, Laughlin, Gail A, additional, Liu, Yongmei, additional, Lorentzon, Mattias, additional, Lunetta, Kathryn L, additional, Mellström, Dan, additional, Murabito, Joanne M, additional, Murray, Anna, additional, Nethander, Maria, additional, Nielson, Carrie M, additional, Prokopenko, Inga, additional, Pye, Stephen R, additional, Raffel, Leslie J, additional, Rivadeneira, Fernando, additional, Srikanth, Priya, additional, Stolk, Lisette, additional, Teumer, Alexander, additional, Travison, Thomas G, additional, Uitterlinden, André G, additional, Vaidya, Dhananjay, additional, Vanderschueren, Dirk, additional, Zmuda, Joseph M, additional, März, Winfried, additional, Orwoll, Eric S, additional, Ouyang, Pamela, additional, Vandenput, Liesbeth, additional, Wu, Frederick C W, additional, de Jong, Frank H, additional, Bhasin, Shalender, additional, Kiel, Douglas P, additional, and Ohlsson, Claes, additional

Published
2018
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9. Low Free Testosterone Is Associated with Hypogonadal Signs and Symptoms in Men with Normal Total Testosterone

Author

Antonio, Leen, Wu, Frederick C. W., O'Neill, Terence W., Pye, Stephen R., Ahern, Tomas B., Laurent, Michaël R., Huhtaniemi, Ilpo T., Lean, Michael E. J., Keevil, Brian G., Rastrelli, Giulia, Forti, Gianni, Bartfai, György, Casanueva, Felipe F., Kula, Krzysztof, Punab, Margus, Giwercman, Aleksander, Claessens, Frank, Decallonne, Brigitte, and Vanderschueren, Dirk

Abstract

Context:During aging, total testosterone (TT) declines and SHBG increases, resulting in a greater decrease in calculated free T (cFT). Currently, guidelines suggest using TT to diagnose androgen deficiency and to reserve cFT only for men with borderline TT.Objective:Our objective was to investigate if either low cFT or low TT is more strongly associated with androgen-related clinical endpoints.Methods:A total of 3334 community-dwelling men, aged 40—79 years, were included in this study. Differences in clinical variables between the referent group of men with both normal TT (≥10.5 nmol/liter) and normal cFT (≥220 pmol/liter) with those who had normal TT/low cFT, low TT/normal cFT, and low TT/low cFT were assessed by regression models adjusted for age, center, body mass index, and comorbidities.Results:A total of 2641 men had normal TT (18.4 ± 5.5 [mean ± SD] nmol/liter)/normal cFT (326 ± 74 pmol/liter), 277 men had normal TT (14.2 ± 3.7)/low cFT (194 ± 23), 96 men had low TT (9.6 ± 0.7)/normal cFT (247 ± 20), and 320 men had low TT (7.8 ± 2.5)/low cFT (160 ± 55). Men with normal TT/low cFT were older and in poorer health. They had higher SHBG and LH and reported more sexual and physical symptoms, whereas hemoglobin and bone ultrasound parameters were lower compared to the referent group. Men with low TT/normal cFT were younger and more obese. They had lower SHBG, but LH was normal, whereas features of androgen deficiency were lacking.Conclusions:Low cFT, even in the presence of normal TT, is associated with androgen deficiency-related symptoms. Normal cFT, despite low TT, is not associated with cognate symptoms; therefore, cFT levels should be assessed in men with suspected hypogonadal symptoms.

Published
2016
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